Buettner, D. (2017). The blue zones of happiness: Lessons from the world's happiest people. National Geographic.
Style de citation Chicago (17e éd.)Buettner, Dan. The Blue Zones of Happiness: Lessons from the World's Happiest People. Washington, D.C.: National Geographic, 2017.
Style de citation MLA (8e éd.)Buettner, Dan. The Blue Zones of Happiness: Lessons from the World's Happiest People. National Geographic, 2017.
Attention : ces citations peuvent ne pas être correctes à 100%.